Before attempting to install, ensure your PC meets the following minimum specifications: Activision Support Windows Vista / XP / 7 / 10 / 11 Intel Core 2 Duo E6600 or AMD Phenom X3 8750 NVIDIA GeForce 8600GT / ATI Radeon X1950Pro or better At least 12GB of free space (after decompression) Safe Installation Guide
Compression specialists (often referred to as "repackers") achieve these small sizes through several technical methods: Call Of Duty Black Ops 1 Highly Compressed -UPD-